The GRACO LB050A Merkur Bellows 303 SST Displacement Pump is a robust, stainless steel (303 SST) piston pump designed for reliable, low-maintenance fluid transfer. It features a bellows seal design to eliminate throat seal leakage and is intended for use in pumping moisture-sensitive materials such as coatings, stains, varnishes, and industrial fluids within GRACO equipment.

Key Features:

• Displacement pump (bellows seal piston pump)
• LB050A, 50 cc
• 303 stainless steel, PEEK, PTFE, tungsten carbide, UHMWPE
• Maximum fluid working pressure: 310 bar (33.1 MPa); Maximum fluid inlet pressure: 1.0 bar (0.1 MPa)
• Waterborne, solventborne, high solids, Xirallic, CARC, metallics, topcoats, stains, varnishes, UV coatings
• Bellows seal design eliminates throat seal leakage and lubrication needs
• Low maintenance with no seals exposed to the atmosphere
• 300 series stainless steel construction for durability
• Easy-to-flush design for fast color changes and reduced material waste
• Simple air motor design with minimal parts for reduced repair time
• Online replacement bellows seal for improved serviceability and lower cost of ownership

Applications:
General metal finishing, wood finishing, plastic finishing, CARC, furniture manufacturing, general metal manufacturing, railroads, wood and wood products, heavy equipment manufacturing

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with GRACO equipment, reducing downtime and maintenance costs.
• Ensure all wetted parts are compatible with the fluid being pumped
• Follow manufacturer guidelines for maximum fluid temperature (71°F) and ambient temperature range (2° to 49°F)
• Regularly inspect and replace bellows seals and v-packings as needed
• Use appropriate safety measures when handling high-pressure fluids
• Perform routine maintenance checks to prevent leaks and ensure efficient operation
• Flush the pump thoroughly between color changes or material switches
• Keep spare parts such as bellows seals and v-packings on hand for quick replacement